A mistake is a signal that it is time to learn something new, something you didn't know before.

If you're working for a good company and you're happy there, and you're being compensated accordingly, and your work satisfies you, you should stay there.

The losers in life think they have all the answers. They can’t learn because they’re too busy telling everyone what they know.

When success and incompetence meet, disaster is not far away.

Rule One. You must know the difference between an asset and a liability, and buy assets. An asset is something that puts money in my pocket. A liability is something that takes money out of my pocket.

To be a good detective you must also think like a crook, an immoral, unethical or unlawful person

Money is really just an idea.